3. Japan and South Korea
Colonial occupation and wartime atrocities fueled deep resentment between Japan and South Korea. Despite ongoing disputes, both nations have made efforts to cooperate on economic, security, and cultural issues, especially in the face of regional security threats. In 2023, they held a trilateral summit with the United States, committing to enhanced cooperation across military, diplomatic, and economic sectors. This collaboration aims to address shared concerns over North Korea’s nuclear threat and China’s rising influence in the Indo-Pacific region (axios.com).
